Wrapping machine



WRAPPING MACHNE Filed Nov. 19 1925 LSSSSB '2 SheeLs-Sheet 1 Pazzi Pz'emfe @Fume 212 1926.

F. WRAPPING MACHINE Filed NOV- 19, 1925 2 sheets-sheet MLT im,

um mu 1:1 VEL-1. im?? PduZ Diez/ce Patented June 22, 1.9.26'.

U NIT E il PAUL FIERCE, 0F CHICAGO, lLLINOIS..

WRAPPING MACHINE.

Application filed November 19, 1925. Serial No. 69,959.

This invention relates to a wrapping machine and moriI particularly lo an improved adhesive applvmg means to be used in con nectiou with the wrapping machine for annular article`l such as automobile tire rasings, coils of wire and the like.

1Wrapping machines of this general type are exemplified by United States Letters Patent No. 1,387,016, granted on August 8, 1921, to John Scherner and Edward Hutchens, and it is an objectl of this invention to provide an improved means for controlling the application ol' the adhesive to the wrapping material as it is applied to the article to be wrapped.

It is also an important object of this inventionto provide a device of the kind described .which autmmitically shuts ott' the flow of adhesive when the wrapping nia terial breaks or is exhausted.

Other and further important objects of this invention will-bt, apparent from the dis; closures in the specitication and the. accompanying drawings.

This invention-4in a preferred form-is illustratedvon the drawings and hereinafter more fully described.

On the drawings:

Figure l is a fragnientary vertical section with parts removed and parts in elevation illustrating a wrapping machine embodying the principles of this invention.

Figure 2 is an enlarged fragnie'ntary front elevational view illustrating the improved adhesive applying means of this invention.

Figure 3 is a plan View of the adhesive applying means showing a part of the shuttle in section. i

Figure 4 is a.' fragmentary section on the kline'lV-IV of Figure 3.

Figure 5 is a section on the line V-V of AFigure 2 with parts omitted.

As shown ou the drawings:

A suitable base frame 1 afl'ords a` support for a usual yoke-shaped shuttle frame 2 in which an annular shuttle 3, having a closure gate l is rotatably supported. Journalled longitudinally` of the base frame 1 is a main dri vc shaft which carries a large flat-faced groorcd pulley (i, the grooved face of whichfrietionall)I engages the periphery of the shuttle 3 to rotate the same within the frame 2.

Suitable supporting one of which is shown provided for rotatably and driving rollers, at (5 in Figure 1, are supporting an annular article such as a'n automobile tire casing, coil of wire or the like and rotating the same through the eye-of the shuttle 3. The interior ofpsaid shuttle affords a chamber which is adapted to contain a suitable adhesive, said adhesive being ordinarily introduced thereinto through a suitable filling cup 7 (Figure 1). i

Rotatably mounted on the face of the shuttle 3 is a suitable reel or supply of Wrapping material 8, a strip of wrapping material from the reel or supply 8 being indicated by the reference nuinera 9. Said'strip .of wrapping material 9 is led from the reel 8 around a tension device 10 through' an edge folder 11 and over an adhesive applying device which will be specifically described hereinafter, to the tire orv other annular article 12 to` which the wrapping material is spirally applied, due to -the relative rotation of said annular article and shuttle in planes substantially perpendicular to 'each other.

The adhesive applying means comprising the present invention embodies a hollow member 13 which is preferably cylindrical and which is engaged at its inner end With` a threaded aperture in the face of the shuttle so that it communicates with the adhesive containing chamber in the interior of said shuttle.

'I`o`facilitate the -iiow of adhesive from` to said member, is an arm 18 which affords a pivotal support for one end of a roller 1S), the other end `of said roller 19 being pivotally supported by an arm 20 which rotatably engages the inner end of the meinber 13 at a point adjacent the face of the shuttle 3.

In order to. permit the flow of adhesive from the interior of the member .13 to the exterior thereof for application to the strip of wrapping materiah said member 13 is provided with a restricted aperture-21 (Figures 3 and 4), the outer edge of which opens into a groove formed in the outer face of said member v13 as clearly shown in Figures 4 and at Slidably mounted in said groove 22 is a valve or vcontrol member 23 'which serves to cut oil the flow of adhesive 'through the aperture 2l, under certain conditions to be described hereinafter. Said valve 23 is provided with an integral eX- tension 24 which is secured to a lateral projection 25 on the arm 18 by means of a set screw 26 so that said valve member is moved to open or closed position by the rotation of the arm 18 relative to the member 13. The arm 13 or plate 20 is provided with lsuitable eounterweights 27 and 2S as shown in Figures 3, 4 and 5 for a. purpose to be described hereinafter and the counter- Weight 28 is notched as shown at 29 for engagement with a stop pin 30 secured to the member 13 whereby the movement o the arms 18 and 2O andi of the valve member 23 relative to said member 13 is limited.

rlhe tension of the strip of Wrapping material 9 on the roller 19 when the machine is `running is sullicient to keep said roller 19 in the position shown in dotted lines` in Figure 4 and to consequently hold the valve member 23 in such position that adhesive is discharged to the surface of the member 13 through the aperture 21 and is consequently properly applied to said strip of Wrapping material.\. It will be appreciated that in case the strip of wrapping material breaks, centrifugal action would ordinarily be sutlicient to move said valve member into closed position as shown by the full lines in Figure 4, provided that the counter- Weights 27 and 28 are properly proportioned to the speed of the particular machine; I have provided additional means to assure such action under all conditions. Said means comprise a leaf spring 3l, one end of which is secured to the face of the shuttle 3 as shownat 32 and the other end of which abuts a pin 33 extending inwardly from the roller end of the arm 20. As shown in the drawings, said arm 2() is so counter- Weighted as to partially balance centrifugal action and close the valve upon breaking or exhaustion oi' the wrapping material.

` The closing of the valve is mainly eifected by the spring, but it will he understood that the spring 31 might omitted since with the counterweights 2T and 23 properly proportioned centrifugal action would be suticient to close the valve and prevent escape of the adhesive through the aperture 21 ,under all circumstances when the strip breaks or becomes exhausted.

It Will be apparent that l have provided an effective control means for an adhesive applying member adapted for use in connection with Wrapping machines of this general type, said control means being automatically adapted to shut off the supply, ot adhesive upon breaking or exhaustion of the wrapping material or upon stopping of the machine. The device which I vhave provided for this purpose is simple and effective and there is little likelihood o'li the same getting out of order in the normal operation of ma- -chines to which it is applied.

I ani aware that numerous details of construction may be varied through a Wide range without departing from the principles of this invention, and l. therefore do not purpose limiting the patent granted hereon, otherwise than necessitated by the prior art.

claim as my invention:

1. The combination with a wrapping machine including a rotatable shuttle, adhesive applying means on said shuttle, and valve means for rendering said adhesive applying means inoperative when the shuttle is stoppedv 2. The combination with a Wrapping machine including a shuttle containing a supply of adhesive, of adhesive applying means associated with said shuttle, and means movable relative to the shuttle and to said applying means for controlling the How of adhesive from said applying means.

3. The combination with a Wrapping ma` chine adapted to apply4 a strip of wrapping material under tension, ot' adhesive applying means engaging said wrapping material, and a control vvalve for the adhesive held open by the tension of the strip of wrapping material.

4. The combination with a Wrapping machine adapted to apply a strip of Wrapping material under tension, of adhesive applying means engaging said Wrapping material, and a spring closed control valve on said applying means normally held open by the tension of the strip of Wrapping material.

5. The combination with a wrapping machine adapted to apply a strip of wrapping material under tension, of adhesive applying means engaging said Wrapping material, and a counterweighted control valve mechanism on-said applying means normally held open by the strip of wrapping material,

6. The combination with a wrapping ma- :means pivotetl on said member for open ating the valve controlling said aperture.

8. ln a Wrapping machine adhesive-containingmeans, adhesivefapplying;r means associated therewith and oounterweighted springaetuated means pivotally mounted on said applying vmeans for controlling the flow ol adhesive therethrough.

. in Tv'sapiing machine adhesive-con :s, :nlhesive-applying means astliei'ewitlx., and counterweighted minted on said applying means for eontiolling the tlow oi' adhesive there t' rough. l ln a nu )ping machine adhesive-conmlhesive applying means asthe; ith, and valve means mova J mounted. on the outside of said applying means for controlling the flow of ad-v hesive therethrough.

11. lin a Wrapping machine, adhesive-con taining means, adhesiveapplying means, means pivotally mounted on said adhesiveapplying means for controlling the flow of adhesive therethrough, and stop meansfor limiting the movement of said pvoted oontrol means.

l2. In a wrapping machine, adhesive-containing means, grooved adhesive-applying means, and means slidably mounted in the groove in said applying` means for controlling the flow of adhesii e therethrough.

In testimony whereof I have hereunto subscribed. my name.

PAUL PIERCE. 

